I did it for a while. I was up to the 16-18 time frame. My eyes got a lot stronger. I could focus faster and bright lights didn't bother me. I'm losing the effects and need to start it again. I never made it to the 44 minute mark so I can't offer anything other than that. I didn't get any bad side effects that i know of either. Check Hiram Ratan Manek. I think that is his name. Also, only do it when the sun is low on the horizon. You can get to much of a good thing.